Microsoft says its November 2026 cumulative updates fix USB audio problems affecting some Windows devices after security updates released since September 2026.
The issue affected USB Audio Class 1.0 devices on Windows Server 2012 and later, as well as Windows 10 and Windows 11. On some systems, devices would not start or produce sound. Users also reported missing audio output, unresponsive volume controls and sound settings, and “This device cannot start (Code 10)” errors in Device Manager. Some speakers failed only with multichannel features such as 3D audio or 8-channel modes.
Microsoft released out-of-band updates on September 14 to address symptoms involving 8-channel or 3D audio. It says the remaining symptoms are resolved in the Windows security update released on November 10, 2026 (KB5132061) and later updates.
Microsoft has not provided an official workaround for users unable to install the November updates immediately. Some users have restored audio by switching affected devices to 2-channel mode.
The November 2026 cumulative updates also resolved Outlook sign-in and mail delivery problems on Exchange Server systems caused by October 2026 Windows Server security updates.
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